Improvement in loom-pickers



8. Boom. Loum-P iokers.

Patent ed September 30 m w W i,

am/w PATENT ()FFIGE.

UNITED STATES SAMUEL BOORN, OF LOWELL, MASSACHUSETTS.

IMPROVEMENT IN LOOM-PICKERS.

Specification forming part of Letters Patent No. 143,21 8, datedSeptember 30, 1873; application filed April 9, 1873.

To all whom it may concern:

Be it known that I, SAMUEL BOORN, of Lowell, in the county of Middlesexand State of Massachusetts, have invented a new and useful ImprovementinLoom-Pickers, of which the following is a specification:

My invention consists of a jacket or clamp of rawhide or other suitablematerial, applied to the picker, as hereinafter described, so as to takethe force of the picks or blows of the picker-staff, and protect thepicker from wear and fracture, and so as to prevent the hole in thepicker for its guide-rod from becoming so elongated as to cramp upon therod and wedge itself fast, without mateflallyincreasing the weightorsize of the picker, or necessitating any changes in the looms incommon use for its application to them.

Figure 1 is a view of one side of a picker having my improvementapplied. Fig. 2 is an end section of the same on the line X Y, Fig. l. l

A is the picker. B is the hole through which passes the rod on which itslides backward and forward. At the end 0 it strikes the shuttle anddrives it. The neck or shank of the picker passes through a slot in theback of the Shuttle-box, this slot being only wide enough to admit ofthe neck passing within it. Hence it is not possible to increase thethickness of this part of the picker.

At the point d the pickerstaff strikes the picker, and, as the part ofit which comes in contact with the latter moves in the arc of a circle,whilethepickermovesinastraightline,thestaff strikes, or bears upon,onlypart of the edge of the picker atthc same instant, and cuts or wearsinto it very rapidly. By the shock of its repeated blows thepicker-staff, also, soon draws out, or elongates, the hole B throughwhich passes the guide-rod,Which it traverses, and the picker cramps onthe rod, and is torn apart by the force of the blows. To remedy theseevils, and afford a greater surface for the blows of the picker-staff,and also stiffen the picker about the hole B, so that it cannot be drawnout of shape and without adding materially to the size and weight of thepicker,

. I apply the jacket or clamp of rawhide F about the picker, so that itsedges, at the ends, shall extend. over the point where the staffstrikes, and terminate against the sides a: 00 of the shuttle-boxcaseibefore reaching that part of the neck of the picker which passesthrough the side of the shuttle-box. At the same time the edge of thejacket F, as the staff moves forward, receives the force of theblow-being struck first-and prevents the hole B from being drawn out ofshape.

As the jacket F onlycovers and protects those parts of the pickerexposed to the most wear and strain, it does not add materially to theweight or size of the picker, or the cost of making it, while it nearlydoubles its strength and durability. v

The ends of the jacket F, on each side of the picker, bearing againstthe face of the shuttie-box case on the line 0 c, serve to take thelateral strain off the hole B, through which the race-rod passes, andaid in preserving the shape of the hole, thus insuring freetraverse ofthe picker to and fro.

The jacket F may be secured to the picker in any suitable manner; but Iprefer to rivet it to the latter in the usual way.

What I claim as new and my invention is-- The picker A, having itsspindle-sleeve surrounded by the jacket F, so that the ends of saidjacket shall bear against the sides was of the shuttlebox case,substantially as described.

' SAMUEL BOORN.

Witnesses:

D. HALL RIcE, J. F. HASKELLL

